Combined incinerator and water heater



C. EPSTEIN March 3, 1931. w,

COMBINED INCINERATOR AND WATER HEATER I5 Sheets-Sheet 1 Filed Aug. 13,1928 w. c. EPSTEIN 1,794,947

COMBINED INCINERATOR AND WATER HEATER Filed Aug. 15 1928 3 Sheets$hec ,2

March 3, 1931.

I 4 0 0 0 0: 4 44 I II IIIIui o 0MN0 0 N 0 o 0 0 0 0 ATTORNEY March 3,1931; w. c. EPSTEIN COMBINED INCINERATOR AND WATER HEATER Filed Aug. 13,1928 5 Sheets-Sheet 3 //VVEN 70H,

ATTORNEY Patented Mar. 3, 1931 PATIENT OFF/I WILLIAMC. EIESTEIN, DAYTON,OHIO; ASSIGNOR TO THEDUO-TO'R MANUFACTURING COMPANY; OEDAYTON; OHIO, ACORPORATION OHIO comnmnn morn-manor; Ann w-n'rnn Ermine Application:filed- August 13,18. Seriallim299fl65a This invention relatestoa-combined incinerator and waterheaterand is acontinuation vide acombinedincineratorzand water heater ofsuch a character-thatinsubstantial-portion of the. Water heating surfaces will be so arrangedthat the products of combustion" of "II the'material beingconsumedfiwill'notcome in contact therewith and consequently such.surfaces wilt not: become :coated with; grease '01 other matter given.oil by! the material which is being consumed: v

A' further object'of the invention is: toprovide such an apparatus witha receptacle for the material to be consumed of such-a character that.the lower portion thereof, which "is subjected tothe greatest heat,maybe renewed when Worn out Without discarding the receptacle as aWhole.

A further object ofthe invention is to provide a combinedincinerator'and waterheater having amain burner provided with; inner andouter gas outlets to direct the flame against the bottomofthevreceptaelefor-the material to be consumediand against'the-tank and havingassociated" therewith a pilot burner of such acharacter that it willsimultaneously ignite the gas' at both the inner and outer outlets ofthemain burner.

Other objects of the invention Willappear as the apparatus isdescribed'indetail. In'the accompanying draWingsFig: lisa verticalsectional view taken centrally through a combined incinerator and Waterheater embodying my1nventi0n ;wE1g.' 21s, a

transverse sectional view'taken on the-line 22 of Fig. 1; Fig. 3 is aplan viewof" a portion of the main burner showing the pilot burnerpartlybroken awaygiFig. 4 is a transverse section of the burner takenon=the line HofFigB; Fig. 5 is a vertical soctional view takencentrallfythrough a modified form of combined: incinerator and Waterheater;

andFig; 6' is a-transverse section takenon the line 6-6- ofFig 5 andpartly broken away.

In these drawings I have illustrated one embodiment. of my, inventiontogether with a slightly modified form ,thereof but it will beunderstood .thatthese embodiments have been chosen for thezpurposesof.illustration only andE that the apparatus may takevariousforms-without;departing from the, spirit of the invention.

In that form illustrated inF-igs 1 and 2, the apparatus?comprises aztanklwhieh is annular in form and has; an inner circumferential wall Zand anouter circumferential Wall. 3, the inner and :outer Wallsbeingconnectedat their; upper and lower ends respectively. by a top Wall4 and a bottom Wall 5. The outer circumferentialliwall (proj ects somedistance below-thebot'tom walla and ,isprovided with aninwardlybextending annular. flange or subbottom 6 having; acentral:openingto receive at burner 7. The tank is preferably supported-0n legs:8 or similar supports so that the burnerissome distanceabovethe floor.Depending; from the sub-bottom 6, about the opening therein, is ahousing 9 having inwardlyfextending brackets 10 on which the burneri 7is supported. This housing also has a flange 11 which cooperates witha;latch(12 toremovably support anash pan 13.

Means are providedgfor supporting the material to, be consumed Withinthe central opening. to the tanln This means may, take various forms,and may be wholly separate fromw the tank or it may utilize a portion ofthe tank in the supportingfunction. As here shown; asupporting structureis mounted on the upper end ofuthe tank and consists of a ring orannular casting 14 secured tothe tank: aboutthe upper end of the openingand Comprising an inwardly extending portion 1-5-spaced frointhe topWall 4 of the tankand provided with an upwardly extendingflange 16;Supported upon the inwardly extending portion 15 of the casting 14 andabout the-flange 16 is a housing 17, preferably cylindrical in form andhaving at its upper end an inwardly extending flange 18. Arrangedwithinthe opening inithe tank is a; hopper 19 Which is preferably supportedwholly at its upper end upon the supporting structure consisting of thecasting let and the housing 17. To this end a ring. 20 is rigidlysecured to the upper end of the hopper and has an outwardly extendingportion which overlaps and issupported by the flange 18 of the housing,the two parts having contacting surfaces arranged to form a tightJOlIlt. Thus the hopper is supported wholly upon the housing and can beremoved from the tank by merely lifting the same there from. A cover 21ishinged to the ringr20 V of the hopper to close the upper end thereofand prevent the escape of fumes; The hopper is, in the present instance,of a diameter 'somewhatless than the diameter of the opening through thetank, thereby providing between thehopper and the tank a passageway 22.The lower portion of the hopper is perforated and, in the presentinstance, the circumferential wallthereof is provided with slots 23 andthe bottom wall 24: is slotted. As here shown,ithis bottom wall is inthe form of a grate, the inner portion 25 of which is movable tofacilitate the removal of ashes from the hopper. In'the presentconstruc-v "tion, the bottom wall is flanged to embrace the lower end ofthe cylindrical wall of the hopper and is detachably secured thereto byboltsor screws 26, thus enabling the bottom wall to be removed andrenewed if necessary. e

I also prefer to so construct the hopper that thelower portion thereof,which is subjected to the greatest heat, may be removed and renewedindependently of the'upper portion.

:To this end the hopper is formed in two parts, the upper portion beingremovably supported on the tank and the'low'er portion,

shown at 27, having lugs 28 overlapping the lower end of the upperportion and secured theretoby boltsi29. Preferably the upper endof thehopper is flared, as shown at 30, to facilitate the introduction of thegarbage or-other material into the same and the upper end of the innerwall of the tank is flared, as shown at 31, to maintain the properspacing between the same-and the flared por- .tion of the hopper. Thespace or passageway 22' opens into the interior of thesupporting'structure,which constitutes an outlet passageway or chamber for theproducts of combust-ion and: is provided with an outlet 32 adapted to.be connected with a flue. The upper end of the hopper, which extendsinto i this outlet chamber, is slotted, as shown at 33,

to permit the fumes and'gases to pass from the hopper to the outlet 32.As here shown, the flared upper'end of the hopper is flat on that sideadjacent to the outlet 32, as shown at 34, to avoid restricting thecapacity of the outlet.

f. The productsof combustion both from the burner7 and from thematerial'which is being consumed will act upon the inner through thebody of water in the'tank. As

here shown, these other passageways consist of conduits ortubes 35mounted in the upper and lower walls of the tank a short distance fromthe inner wall 2 and spaced apart about that inner wall. Thus the lowerends ofthe tubes or passageways are so arranged that they will receivethe products of combustion from the burner 7 but, being in the bottomwall of the tank, they will not receive any of the greasy gases or otherprodf nets of combustion from the material which is being consumedwithin the hopper and consequently they will" not become coated withsuch greases or other materials, whlch coating would tend to restrictthe passage of heat through the same to the water. These passageways 35open into the annuflar portion of the outlet chamber, formed between theportion 15 of the casing 14 and the top wall of the tank, so that allprod-' nets of combustion are delivered to the outlet chamber. Theportion 15 overlaps the upper ends of the passageways 35 and beingspaced but a short distance therefrom tends to retardthe flow of'theproducts'of combustion through these passageways and thus maintain thesame fora longer time in contact with the walls ofthe passageways,causing more of the heat thereof to be'taken up v by the water. 7

The burner 7 which is shown in detail in Figs. 3 and 4c is preferablyannular .in form and ;is provided with inner and'outer gas outlets soarranged that the flame from the inner outlet will be directed againstthe bottom of the hopper and the flame of the outer outlet will bedirected against the bottom of the tank andcthro'ugh the passageways 22and35. As here shown, theburner comprises a lower portion 36 and anupper portion 37 spaced from the lower portion to provide slots 38 and39 atthe inner and outer edges, respectively, of the burner. The upperportion also has inwardly and outwardly projecting portions 40 and 41overhanging the slots to prevent the entrance of foreign matter to theburner. The burner 7 ispreferably automatically controlled by means of athermostat in "the tank or elsewhere. This method of control being wellknown and forming no part of the present invention is nothereshown..Because. of the character of the burner, it is necessary that the pilotburnershall'be of such a character as'toinstantly ignite-the gas at bothnew? th'e'inner and-outer" outletsof' the burner and for this purposeIlhave provided a': special pilot burner. Preferably this pilot burneris arranged above the annular burner' and hasgasoutlets directedrespectively toward the inner and outer sides of the annular burner, itbeing understood that the gas from these outlets burns continuously. Inthe present construction the pilot burner is in the form of a housing 42mounted on the top wall 37 of the burner 7 and connected thereto by asupply pipe 43 which extends through the two parts of the burner 7. Atthe upper end of the supply pipe the housing 42 is provided withoppositely directed gas outlets or jets 44 directed respectively towardthe inner and outer sides of the annular burner, the housing 42 havinglateral openings 45 to permit the passage of the gas. Thus it will beapparent that when the pilot burner is ignited it will project a jet offlame above both the inner and outer gas outlets of the annular burnerand when the gas valve is opened the gas will be ignited instantly onboth sides of the burner.

That form of the apparatus shown in Figs. 5 and 6 is substantiallysimilar to the form above deseribwl with the exception that it employs aslightly ditterent means for supporting the material to be consumed andhas the passageways through the tank arranged in a slightly dilterentmanner. As

here shown, it comprises a tank 46 having an outer wall 47 and an innerwall consisting of an upper portion 48 and a lower portion 49, the lowerportion being of a diameter substantially greater than the upperportion.

.Thus the inner wall provides an opening through the tank which is ofless diameter at its upper end than it is at its lower end. The smallerupper portion 48 of the inner wall utilized in part to supportthematerial to be consumed and, as here shown, it extends slightly belowthe upper end of the laro'er part 49 of the inner we. 1, as shown at 00,and has detachably secured thereto a receptacle or basket 51 which isapertured in its bottom and circumferential walls and is arrangeddirectly above the burner 52,

a which is arran ged below the opening through the tank. A supportingstructure or top casting 53 is supported on the upper end of the tankand a short ho per 54 is supported on this casting and extends into theupper portion of the opening through the tank to guide the material intothe receptacle. This supporting structure is hollow and of a greaterdiameter than the hopper 54 and constitutes an outlet chamber for theproducts of combustion, the hopper 54 being slotted, as shown at 55, topermit the products of combustion to pass through. the outlet chamber toan outlet 56. Passageways are provided to carry the products ofcombustion understood that I do. not. dcsire-to-be limited to-t-hedetails-theme various modifications may occur to" a. person skilled in Ithe art.

Havingnow fullydescribed'my; invention, what-Q1: claim; as new and.desire-t0 secure by Lette-rsPatent, is: i

1-. In a. combined incinerator: and water heater-,a tank: for water to.be heatodhav-ing a passageway extending: theretlnnughpand eonstitutin ga combusti on chamber, a. burner arranged beneath I said;combustionchamber, and .means'tor supporting :material .tobe consumedvwithin said-combustionchamber,. said tank. having a passageway,othercthan said combustion. chamber.- extending. through. the

water. therein.- and arrangedto. receive. products of combustion from.said. burner:.

2.. In a.- combined incinerator. and; water heater, a tank for watertobe heated having a. passageway extending. therethmugh and constitutinga. combustion chamber, a burner arranged: beneath. Sillfl. combust on chamber, and nreanstor supportlngmaterial to be. consumed within.v saidcombustion chamber, .said tank. having a. passageway. other than. saidcombustion. chamber extendingthrough the water thereinand. having. itslowerend so "arrangedthatit willrreceiveproducts of combustionfromsaidburnerhut Wlll not. reoelve products otcombustionfrom the material insaid.combustion.chamber.

3...In a combined incinerator and water .heatenatankhaving inner andouter. circumierential walls, the inner wall forming a vertical openingthrough the tank which constitutes a combustiomchamber, a burnersupported beneath said combustion chamber,

and means for supporting material to. be consumed withinsaidcombustionchamber, said tank having aplurality ofpassagewaysextending-through the same between'sai'd inner and outer walls, spacedapart aboutsaid combustion chamber and arranged to receive productsof'combustion from said burner.

42' In a combined incinerator and, water heater, a tankfor water-to beheated: having a passageway extending therethrough andconstitutingacombustion chamber, a burner arrangedibeneath; said combustion chamber,

means for" supporting; material to be. consumedv Within-said:combustion: chamber, said constituting a combustion chamber, a burnerarranged beneath said combustion chamber, and means for supportingmaterial to be consumed Within said'combustion chamber, said combustionchamber being arranged to providea passageway for products of combustionabout said material and said tank having a passageway for products ofcombustion extending through the water'therein from a point adiacent tosaid burner and separate fromsaid combustion chamber.

6. In a combined incinerator and water heater. a tank having an openingtherethrough constituting a combustion chamber, a receptacle formaterial to be consumed sup ported within said combustion chamber andspaced from the wall thereof, a burner arranged beneath said combustionchamber. and conduits extending throughsaid tank and arranged to receivethe products of combustion from said burner.

7 In a combined incinerator and water heater. a tank'having inner andouter circumferential walls and end walls. said inner wall 1 forming avertical opening through said tank. said opening constituting acombustion chamber. a receptacle for material to'be consumed supportedin said combustion chamber. a burner mounted beneath said comlous tionchamber. and conduits mounted in said end walls. extending through saidtank and spaced from'said inner and outer walls.

'8. In a combined incinerator and water.

heater comprising a tank having an opening through the same constitutinga combustion chamber. and aburner mounted beneath said. combustionchamber, a hopper arranged connecting said lower part, with andsupporting the samefrom said upper part.

In testimony whereof, I aifix my signature hereto.

' WILLIAM C. EPSTEIN.

within the combustion chamber and comprising .an upper portion removablysupported a on said tank and alower portion extending to a pointadiacent to said burner. and means for detachably securingsaid' lowerportion to said upper portion.

'9. In a combined incinerator and water heater, a tank having an openingtherethrough' constituting a combustion chamber,

a burner arranged beneath said combustion chamber, means for supportingmaterial to be consumed within said'combustion chamber, said supportingmeans comprisingan upper part carried by said tank and a separate lowerperforated part and means for detachably

